John Carter is mysteriously transported to Mars. Carter finds he has great strength on this planet, due to its lesser gravity. Carter soon falls in among the Tharks, a tribe of the planetâs warlike, green inhabitants. Thanks to his strength and combat abilities he rises in position in the tribe and earns the respect of the Thark chiefs.
The Tharks subsequently capture Dejah Thoris, Princess of Helium, a member of the humanoid red Martian race. The red Martians inhabit a loose network of city states and control the desert planetâs canals, along which its agriculture is concentrated. Carter rescues her from the green men to return her to her people. (Wikipedia Summary)